Distance Control Switch Circuit [11/2017 - 01/2023]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Radar Cruise / Data List.
5. Read the Data List according to the display on the Techstream.

   Powertrain > Radar Cruise > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Distance Control Switch	Distance control switch signal	ON or OFF	ON: Distance control switch on OFF: Distance control switch off	-

   Powertrain > Radar Cruise > Data List 

   Tester Display
   Distance Control Switch

   OK

   When the steering pad switch assembly (vehicle-to-vehicle distance control switch) is operated, the display changes as shown above.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2017 - 01/2023] 

Result: 

NG 

See step  2

1. Remove the steering pad switch assembly.

   Refer to REMOVAL [11/2017 - ]

2. Inspect the steering pad switch assembly.

   Refer to INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  COMPONENTS [11/2017 - ] 

Result: 

OK 

See step  3

1. Remove the spiral cable sub-assembly.

   Refer to REMOVAL [11/2017 - 01/2023]

2. Inspect the spiral cable sub-assembly.

   Refer to INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  COMPONENTS [11/2017 - 03/2019]  , or refer to  COMPONENTS [03/2019 - 01/2023] 

Result: 

OK 

See step  4

1. Disconnect the O25 spiral cable sub-assembly connector.
2. Disconnect the Q2 driving support ECU assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O25-12 (DIST) - Q2-23 (SPSW)	Always	Below 1 Ω
   O25-2 (ECC) - Body ground	Always	Below 1 Ω
   O25-12 (DIST) or Q2-23 (SPSW) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE DRIVING SUPPORT ECU ASSEMBLY. Refer to  COMPONENTS [09/2014 - 01/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR